structural weakness

The ore bodies occur in the contact zones between the Yanshanian intermediate-acidic composite intrusions and their surrounding wall rocks, and the structural weakness zones ( unconformity surface, inter-layer fracture zone, slip zone) in the wall rocks.

矿床受控于燕山期中酸性杂岩体与围岩的接触带及围岩中的构造薄弱带（不整合面、层间破碎带、滑脱带），矿体围绕岩体呈环带状产出。

It has also emerged that the US Federal Aviation Authority, the lead safety regulator for all US-built aircraft, had made operators aware late last year of a potential structural weakness in Boeing 777 aircraft that could lead to the aircraft breaking up in mid-air.

另有消息称，所有美国制造的飞机的主要安全监管机构&美国联邦航空管理局（FAA）去年末曾通知航空服务运营商说，波音777存在一个潜在的结构性缺陷，可能导致飞机在空中解体。

That is when the euro took center stage because of a structural weakness in its constitution.

这是由于在欧洲站上中心舞台之时,组织内部存在结构性缺陷.

In this view, exploiting a structural weakness in the MTS market was fair game.

该观点认为, 利用MTS市场的结构缺陷是场公平游戏.